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16 in.
(406 mm)
40-1/2 in.
(1029 mm)
Figure 11.1 Hearth Extension Dimensions
72 in.
(1829 mm)
(660 mm)
to front of
HEARTH
fireplace
EXTENSION
(shaded)
64 in.
BAY-40
(1626 mm)
Continuous,
non-combustible sealant
1/2 in. Micore
Hearth Ext
or equivalent
insulation
(see Table 11.2)
Floor constructed of wood or
other combustible material
Heat & Glo • BAY-40, PIER-40 • 34977 • Rev AE • 05/07/13
62 in.
(1575 mm)
16 in.
(406 mm)
56 in.
(1422 mm)
26 in.
HEARTH
EXTENSION
opening
(shaded)
PIER-40
Tile, stone or other
non-combustible material
2 in. (51 mm)
required
12 in. (305 mm)
from opening of
fireplace
6 in.
(152 mm)
64 in.
(1626 mm)
Protective
Metal Hearth
Strip
39
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